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Restructuring, Impairment, and Related Charges, Net - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 24 Months Ended |
--- | --- | --- | ---
Jun. 30, 2026 | Mar. 31, 2026 | Jun. 30, 2025 | Mar. 31, 2026 | Mar. 31, 2025
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges | $ 136 |  | $ 47 |  |
Employee Severance, Employee-Related Costs, Exit-Related Costs and Asset Impairments |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges | 61 | $ 20 |  |  |
Strategic Growth Initiative Plan - Operational Efficiencies and Cost Optimization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges | 45 |  | $ 38 | $ 468 |
Minimum | Employee Severance, Employee-Related Costs, Exit-Related Costs and Asset Impairments |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  | 200 |  |  |
Minimum | Workforce and Operating Model Optimization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring, anticipated total charges | 230 |  |  |  |
Minimum | Strategic Growth Initiative Plan - Operational Efficiencies and Cost Optimization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring, anticipated total charges |  |  |  |  | $ 650
Maximum | Employee Severance, Employee-Related Costs, Exit-Related Costs and Asset Impairments |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring charges |  | $ 250 |  |  |
Maximum | Workforce and Operating Model Optimization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring, anticipated total charges | $ 310 |  |  |  |
Maximum | Strategic Growth Initiative Plan - Operational Efficiencies and Cost Optimization |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring, anticipated total charges |  |  |  |  | $ 700

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